21866490

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{743}}^1$

素因数の和:868

約数の個数: 64

約数和(自身を含む): 58924800

約数和(自身を除く): 37058310

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 109, 135, 218, 270, 327, 545, 654, 743, 981, 1090, 1486, 1635, 1962, 2229, 2943, 3270, 3715, 4458, 4905, 5886, 6687, 7430, 9810, 11145, 13374, 14715, 20061, 22290, 29430, 33435, 40122, 66870, 80987, 100305, 161974, 200610, 242961, 404935, 485922, 728883, 809870, 1214805, 1457766, 2186649, 2429610, 3644415, 4373298, 7288830, 10933245, 21866490]

約数ペア:

[(1, 21866490), (2, 10933245), (3, 7288830), (5, 4373298), (6, 3644415), (9, 2429610), (10, 2186649), (15, 1457766), (18, 1214805), (27, 809870), (30, 728883), (45, 485922), (54, 404935), (90, 242961), (109, 200610), (135, 161974), (218, 100305), (270, 80987), (327, 66870), (545, 40122), (654, 33435), (743, 29430), (981, 22290), (1090, 20061), (1486, 14715), (1635, 13374), (1962, 11145), (2229, 9810), (2943, 7430), (3270, 6687), (3715, 5886), (4458, 4905)]